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From Jean-Daniel Cryans <jdcry...@apache.org>
Subject Re: NotServingRegionException
Date Wed, 03 Mar 2010 18:22:22 GMT
Ted,

With such a small snippet it's hard to tell ;)

Looks like that region server wasn't assigned with .META. but -ROOT-
contains that address for that region. Look at the logs for when 1)
the master assigns the region and 2) when the region server opens the
region. In between I expect you should see some exceptions.

You can also put your 2 logs somewhere and post a link here so someone
can take a look at it.

J-D

On Wed, Mar 3, 2010 at 9:57 AM, Ted Yu <yuzhihong@gmail.com> wrote:
> Previous attempt wasn't delivered.
>
> On Wed, Mar 3, 2010 at 9:30 AM, Ted Yu <yuzhihong@gmail.com> wrote:
>
>> Hi,
>> I started hbase 0.20.3 successfully on my Linux VM. Master and regionserver
>> are on the same VM.
>> There're two empty tables.
>>
>> Soon I saw the following in regionserver.log:
>> 2010-03-03 09:18:31,643 INFO  [regionserver/10.10.30.104:60020]
>> regionserver.StoreFile(241): Allocating LruBlockCache with maximum size 1.2g
>> 2010-03-03 09:18:58,179 ERROR [IPC Server handler 1 on 60020]
>> regionserver.HRegionServer(849): Failed openScanner
>> org.apache.hadoop.hbase.NotServingRegionException: .META.,,1
>>         at
>> org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:2266)
>>         at
>> org.apache.hadoop.hbase.regionserver.HRegionServer.openScanner(HRegionServer.java:1845)
>>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>         at
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>         at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>         at java.lang.reflect.Method.invoke(Method.java:597)
>>         at
>> org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:657)
>>         at
>> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)
>>
>> And this in master.log:
>> 2010-03-03 09:18:58,196 WARN  [RegionManager.metaScanner]
>> master.MetaScanner(78): Scan one META region: {server: 10.10.30.104:60020,
>> regionname: .META.,,1, startKey: <>}
>> org.apache.hadoop.hbase.NotServingRegionException:
>> org.apache.hadoop.hbase.NotServingRegionException: .META.,,1
>>         at
>> org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:2266)
>>         at
>> org.apache.hadoop.hbase.regionserver.HRegionServer.openScanner(HRegionServer.java:1845)
>>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>         at
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>         at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>         at java.lang.reflect.Method.invoke(Method.java:597)
>>         at
>> org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:657)
>>         at
>> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)
>>
>>         at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
>> Method)
>>
>> Has anyone experienced similar issue ?
>>
>> Thanks
>>
>

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